The UC3625DW requires careful layout and placement to ensure proper operation. TI recommends placing the IC close to the input capacitors, using a star-ground configuration, and keeping the high-current paths short and wide. A 4-layer PCB with a solid ground plane is recommended.
To minimize standby power consumption, ensure that the input voltage is removed during shutdown, and the EN pin is pulled low. Additionally, use a low-leakage capacitor for the VCC pin, and consider using a low-quiescent-current voltage regulator for the VCC supply.
The maximum allowed voltage on the VCC pin is 15V, but it's recommended to keep it below 12V to ensure reliable operation and minimize power consumption.
The UC3625DW has a built-in OCP feature that limits the output current to prevent damage. To handle OCP, monitor the OCP pin, and if it goes low, reduce the output current or shut down the converter. You can also adjust the OCP threshold by changing the value of the ROC resistor.
TI recommends using a low-ESR, high-frequency capacitor (e.g., ceramic or film capacitor) with a value between 10uF to 22uF for the input capacitor. The exact value depends on the input voltage, output current, and desired ripple voltage.
Trust Checks
This model has been provided by community users.
Community Provided
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
UC3625DW Overview
Use the download button to access the UC3625DW schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like UC362,
or try a keyword search, such as Motion Control Electronics
About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
